>SSBB is WAY too fast
Config > General, set the Framelimit to Auto. And let go of Tab if you've been holding that key.

If you need general performance protips, look at a few of the other threads where people complain about performance – there's literally hundreds of them, and there's nothing I can tell you that they can't tell you. (Most important message is "get a better computer". All the other speedhacks can only get you so far on that low-end/ultrabook hardware.)